This is the 16896th most frequent Korean word.
샀던
"샀던" means "had bought."
샀던 describes the book as something that I bought in the past.
나는 작년에 샀던 책을 아직 읽지 않았어요.
I haven't read the book that I bought last year yet.
샀던 is used to specify the item as something that was purchased previously.
어젯밤에 샀던 물건이 정말 마음에 들어요.
I really like the item that I bought last night.
샀던 refers to the house as something I bought a few years ago.